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Feeling Technology

FP6161 Datasheet Preview

FP6161 Datasheet

1A Synchronous Step-Down Regulator

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FP6161
1.5MHz, 1A Synchronous Step-Down Regulator
General Description
The FP6161 is a high efficiency current mode synchronous buck PWM DC-DC regulator. The
internal generated 0.6V precision feedback reference voltage is designed for low output voltage. Low
RDS (ON) synchronous switch dramatically reduces conduction loss. To extend battery life for portable
application, 100% duty cycle is supported for low-dropout operation. Shutdown mode also helps saving
the current consumption. The FP6161 is packaged in DFN-6L, SOT23-5L, and TSOT23-5L to reduce
PCB space.
Features
Input Voltage Range: 2.5 to 5.5V
Precision Feedback Reference Voltage: 0.6V (±2%)
Output Current: 1A (Max.)
Duty Cycle: 0~100%
Internal Fixed PWM Frequency: 1.5MHz
Low Quiescent Current: 100μA
No Schottky Diode Required
Built-in Soft Start
Current Mode Operation
Over Temperature Protection
Package: DFN-6L (2x2mm), SOT23-5L, TSOT23-5L
Applications
Cellular Telephone
Wireless and DSL Modems
Digital Still Cameras
Portable Products
MP3 Players
Typical Application Circuit
VIN
VIN SW
FP6161
RUN FB / VOUT
GND
VOUT
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
1/16
Rev. 0.65




Feeling Technology

FP6161 Datasheet Preview

FP6161 Datasheet

1A Synchronous Step-Down Regulator

No Preview Available !

Function Block Diagram
Slope
Compensation
OSC
FP6161
Current
Limit
Current
Sense
VCC
+
PWM
0.6V
+
Com-
parator
Error
-
FB/ Amp.
VOUT
-
UVLO
+
FBUV
0.3V
Com-
parator
-
Shutdown
RUN Control
OTP
Reference
Voltage
Generator
Pin Descriptions
DFN-6L
SQ
RQ
SR Latch
Switching
Control Logic
Pre-Driver
and
Anti Shoot-
through
RCReuevrvereerrsnseet
Detector
GND
SW
Name No. I / O
Description
NC 1
No Connect
RUN 2 I Enable Pin
VIN 3 P Power Supply
SW 4 O Switch
GND 5 P Ground
FB / VOUT 6
I Feedback
EP 7 P Exposed PAD – Must Connect to Ground
SOT23-5L / TSOT23-5L
Name No. I / O
Description
RUN 1 I Enable
GND 2 P Ground
SW 3 O Switch
VIN 4 P Power Supply
FB / VOUT 5
I Feedback
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
2/16
Rev. 0.65


Part Number FP6161
Description 1A Synchronous Step-Down Regulator
Maker Feeling Technology
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